Home / 193,441.20-290,128.38-51,287.46

Finding the Fourth Proportional to 193,441.20, 290,128.38 and 51,287.46

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Solution

The fourth proportional to 193,441.20, 290,128.38 and 51,287.46 is: 76,922.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,441.20 : 290,128.38 = 51,287.46 : x
  2. Step 2: Convert to fraction form
    193,441.20/290,128.38 = 51,287.46/x
  3. Step 3: Cross multiply
    193,441.20x = 290,128.38 × 51,287.46
  4. Step 4: Simplify right side
    193,441.20x = 14,879,947,684.11
  5. Step 5: Solve for x
    x = 14,879,947,684.11/193,441.20
  6. Step 6: Final answer
    x = 76,922.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.